[FILEUPLOAD-143] #comment somehow Jochen's entry was not previously included in the FAQ, this commit to restore the workaround for Flash client having the `Stream ended unexpectedly` issue #resolve
git-svn-id: https://svn.apache.org/repos/asf/commons/proper/fileupload/trunk@1455085 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/src/site/fml/faq.fml b/src/site/fml/faq.fml
index e14b548..15bfc76 100644
--- a/src/site/fml/faq.fml
+++ b/src/site/fml/faq.fml
@@ -122,4 +122,56 @@
</faq>
</part>
+ <part id="flash">
+ <title>FileUpload and Flash</title>
+
+ <faq id="missing-boundary-terminator">
+ <question>
+ I'm using FileUpload to receive an upload from flash, but
+ FileUpload will always throw an Exception "Stream ended unexpectedly".
+ What can I do?
+ </question>
+ <answer>
+ <p>
+ At least as of version 8, Flash contains a known bug: The multipart
+ stream it produces is broken, because the final boundary doesn't
+ contain the suffix "--", which ought to indicate, that no more
+ items are following. Consequently, FileUpload waits for the next
+ item (which it doesn't get) and throws an exception.
+ </p>
+ <p>
+ The problems details and a possible workaround are outlined in
+ <a href="http://issues.apache.org/jira/browse/FILEUPLOAD-143">
+ Bug 143
+ </a>
+ . The workaround suggests to use the streaming API
+ and catch the exception. The resulting code could look like
+ this:
+ </p>
+ <pre><![CDATA[final List<FileItem> items = new ArrayList<FileItem>();
+
+HttpServletRequest servletRequest = [...];
+RequestContext ctx = new ServletRequestContext(servletRequest);
+
+FileItemFactory fileItemFactory = new DiskFileItemFactory();
+
+ServletFileUpload upload = new ServletFileUpload();
+FileItemIterator iter = upload.getItemIterator(ctx);
+try {
+ while (iter.hasNext()) {
+ FileItemStream item = iter.next();
+ FileItem fileItem = fileItemFactory.createItem(item.getFieldName(),
+ item.getContentType(),
+ item.isFormField(),
+ item.getName());
+ Streams.copy(item.openStream(), fileItem.getOutputStream(), true);
+ items.add(fileItem);
+ }
+} catch (MalformedStreamException e) {
+ // Ignore this
+}]]></pre>
+ </answer>
+ </faq>
+ </part>
+
</faqs>
